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Operating principle: optical; Optical signal: yes; Acoustic signal: no; Response temperature: 70°C; Smoke switch: yes; Mounting type: surface-mounted; Self-adhesive: no; Separate base required: yes; Suitable for duct mounting: no; Primary power supply: mains operation; Supply voltage: DC; Supply voltage: DC 18-28 V; With voltage indicator: yes; Number of contacts as normally open: 1; Operating voltage: DC; Operating voltage: DC 18-28 V; Color: white; RAL number (similar): 9010; Protection class (IP): IP42; Explosion-proof version: no; IFTTT support available: no; Height/Depth: 33 mm; Diameter: 80 mm; VdS approved: no; Installation materials: house/battery/safety; Safety technology: Hekatron optical smoke switch ORS 142 5000552-0501.
€227,83